Question

I succesfully program and execute the helloworld.c in the Application Development Manual page 43. It works very well.

The compilation was done using this command line

gcc -Wall helloworld.c -o helloworld $(pkg-config --cflags --libs gstreamer-1.0)

I’m using the default gstreamer installed on my ubuntu 12.0.4.

I’m concerned about debugging my program and I know that this can be achieved using command line option GST_DEBUG. Here is an example where the debug report of the qtdemuxis generated in a csv file.

GST_DEBUG=qtdemux:5 gst-launch filesrc location=/home/pub_Irma.mp4 ! qtdemux name=demuxer demuxer. ! queue ! faad ! audioconvert ! audioresample ! autoaudiosink demuxer. ! queue ! ffdec_h264 ! ffmpegcolorspace ! autovideosink 2> > (tee /media/thesis/log_pub.csv)

But since I’m not using gst-launch, I’m wonder how to do the same programmatically ? what is missing in manual code to produce a debug report ? Or is there a special parameter to set when compiling or/and executing the program ?

I’ve tried compiling this way

gcc $2 -o $3 -Wall `pkg-config --cflags --libs gstreamer-0.10 --enable-gst-debug`

but without success

thanks for any reply!

Answer 1

I finally found that this can be done in execution time by running the program this way

GST_DEBUG=oggdemux:5 ./helloworld file.ogg

the above example debug the ogg demuxer